/**
 *  Copyright (C) 2008-2013  Telosys project org. ( http://www.telosys.org/ )
 *
 *  Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *          http://www.gnu.org/licenses/lgpl.html
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.telosys.persistence.mappers;

import java.lang.reflect.Field;

import org.telosys.persistence.TelosysPersistenceException;
import org.telosys.persistence.dao.SpecializedFieldMapper;

public abstract class AbstractFieldMapper implements SpecializedFieldMapper
{
	// @Override
	public Object getValue(Object bean, Field field ) 
	{
		Object value;
		try {
			value = field.get(bean);
			return value ;
		} catch (Exception e) {
			throw new TelosysPersistenceException("Cannot get value from field '" + field.getName() + "'", e );
		}
	}
	
	// @Override
	public void setValue(Object bean, Field field, Object value )
	{
		if ( null == value ) {
			if ( field.getType().isPrimitive() ) {
				throw new TelosysPersistenceException("Cannot set null value to entity field '" + field.getName() + "' (primitive type)");
			}
		}
		
		try {
			field.set( bean, value );
		} catch (Exception e) {
			throw new TelosysPersistenceException("Cannot set value in field '" + field.getName() + "'", e );
		}
	}
}
